JP3404835B2 - Interlocking device between accelerator pedal and stroke sensor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interlocking device for transmitting a depression amount of an accelerator pedal to a stroke sensor, and
The present invention relates to an interlocking device between an accelerator pedal and a stroke sensor, which facilitates alignment of origins of a pedal lever and a sensor lever.

[0002]

2. Description of the Related Art In an electronically controlled A / T vehicle or the like, when an electronic control such as a kickdown is to be performed with the accelerator pedal depression / modulation as a factor, a mechanical displacement amount such as an angular displacement amount of a lever is converted into an electronic signal. There is used a so-called stroke sensor, which is mechanically connected to a movable member of the accelerator pedal mechanism to generate an electronic signal corresponding to the amount of depression and addition of the accelerator pedal.

At this time, in order to properly correspond the depression phase of the accelerator pedal and the electronic signal of the stroke sensor, an adjusting mechanism for synchronizing the pedal side phase and the sensor side phase, which are the corresponding reference points, is necessary. As the corresponding reference point, either the idle phase of the accelerator pedal (a state where the pedal is not depressed) or the full phase (a state where the pedal is fully depressed) is usually used.

An adjustment method when the full phase is used as a reference will be described. First, the lever of the stroke sensor is temporarily fixed to a phase at which an electronic signal corresponding to the full phase of the accelerator pedal is obtained. Next, the movement of the pedal link mechanism is fixed while the accelerator pedal is fully depressed, and then the sensor is mounted and fixed at a predetermined position with respect to an appropriate portion of the movable element of the link mechanism and the pedal mechanism. And the lever part of are connected in a mechanically reasonable relationship. As a result, the full phase of both is synchronized. After that, when the temporary fixed state of the both is released, a movement that maintains the phase correspondence between the idle and the full of both is realized based on the connection relation of each.

[0005]

By the way, the accelerator pedal is usually installed in front of the floor surface of the driver's cab, and an instrument such as a meter for displaying information necessary for driving to the driver is mounted on the upper portion of the accelerator pedal. It is desirable that these meters be installed at a position as low as possible so as not to obstruct the driver's front view of the vehicle, and as a result, the space between the meter devices and the pedal mechanism should be the minimum foot required for pedal operation. It is limited to the space of and is extremely narrow.

Due to such a space limitation around the pedal, the layout position of the adjusting portion of the connecting member between the sensor and the pedal and the adjusting method thereof affect the difficulty of the adjusting work at the time of assembling the vehicle.

For example, in the structure shown in FIG. 2, in order to connect the origin phase of the sensor lever a and the origin phase of the pedal lever b in a mechanically reasonable relationship, the length of the connecting member c between them is set. Is provided with an adjustable mechanism (for example, a screw), and this is adjusted. In the figure, d is the accelerator pedal,
b is a pedal lever, c is a connecting member, a is a sensor lever,
Reference numeral e is a stroke sensor, and f is a meter device.

Here, the position of the connecting member c interferes with the foot when the accelerator pedal d is operated when the sensor e and the pedal link mechanisms a, b, c are laid out in front of the sensor e and the sensor as shown in the figure. e and the pedal link mechanisms a, b, and c are inevitably deeper. Therefore, there is a problem that the position of the adjusting portion (the connecting member c) is located at the back of the narrow space above the accelerator pedal d, which makes it difficult to perform the adjusting work.

Further, instead of providing an adjusting portion in the connecting member c in the same layout, the connecting member c may be made to have a constant length, and the mounting angle phase of the sensor e itself to the body may be adjusted. In this case, by adjusting the position of the screw that finally fixes the mounting angle phase of the sensor e to the front side of the sensor e, it is possible to set the adjustment work site to a relatively easy work position on the front side. is there.

However, in this case, if the weight of the sensor e itself is large, fixing with only the screw on the front side causes not only a problem of vibration resistance but also the adjustment method itself is heavy.
It is necessary to adjust the angle phase while supporting the with hands, and the workability is also poor.

Further, all of these adjustment methods are suitable only for matching the origin phase at a certain point, but the stroke amount between the idle phase and the full phase of the accelerator pedal d system varies from one individual to another. In some cases, there was also the problem that we could not respond. That is, when the idle phase of the accelerator pedal d is set as the origin phase and the idle phase of the stroke sensor e is adjusted to be the same, the accelerator pedal d may be changed due to the variation in the pedal stroke amount.
There is a case where the stroke sensor e does not reach the full phase when is set to the full phase.

An object of the present invention, which was devised in view of the above circumstances, relates to such a sensor-pedal interlocking device, and an accelerator pedal which facilitates the origin alignment between the pedal lever and the sensor lever. And to provide an interlocking device between the stroke sensor and the stroke sensor.

Incidentally, as a related technique, the actual Kaihei 1-1572
No. 45 and Sankaihei 3-5629 are known.

[0014]

In order to achieve the above object, the present invention relates to a linkage device for transmitting a depression amount of an accelerator pedal to a stroke sensor, and a pedal lever which rotates according to a depression amount of an accelerator pedal, and a stroke. A sensor lever that is rotatably provided on the sensor and generates a signal according to the amount of rotation, and has a rotation fulcrum between the levers, one end of which engages with the pedal lever and the other end of which engages with the sensor lever. A reversing lever, an adjusting plate that supports the rotation fulcrum of the reversing lever and is rotatably supported by the vehicle body itself, and adjusts the mounting angle of the adjusting plate provided on the driver side of the adjusting plate with respect to the vehicle body. Holding means for holding. The line connecting the rotation fulcrum of the adjustment plate and the rotation fulcrum of the reversing lever and the line connecting the action points on both ends of the reversing lever are perpendicular to each other when the sensor lever and the pedal lever are both in full phase or idle phase. Is preferred.
‥‥‥

[0015]

According to the structure described above, when the pedal lever is rotated in accordance with the amount of depression of the accelerator pedal, the sensor lever is rotated via the reversing lever. As a result, the depression amount of the accelerator pedal is transmitted to the stroke sensor.

To adjust the origin position of the pedal lever and the sensor lever, the adjustment plate is appropriately rotated with respect to the vehicle body,
This is done by moving the rotation fulcrum of the reversing lever.
Then, after the origin alignment is completed, the adjusting plate is fixed to the vehicle body by the fixing means.

Since the fixing means is provided on the driver side of the adjusting plate, the origin alignment work can be easily performed from the cab. Further, although this adjustment work is performed by moving the adjustment plate, since the adjustment plate is lightweight, the adjustment work becomes easy.

According to the configuration, when both the sensor lever and the pedal lever are in the full phase or the idle phase, the rotation fulcrum of the reversing lever which is moved by the rotation of the adjusting plate is a line connecting the action points at both ends of the reversing lever. Move along a tangent arc. Therefore, even if the adjusting plate is rotated to align the origins of both levers, the link relationship before and after the movement is almost unchanged.

Therefore, for example, both the pedal lever and the sensor lever are set to the idle phase in advance, and in that state, the line connecting the rotation fulcrum of the adjusting plate and the rotation fulcrum of the reversing lever and the line connecting the action points at both ends of the reversing lever are perpendicular to each other. If so, even if the adjustment plate is rotated, the link relationship before and after the movement is almost unchanged. That is, according to this configuration, no matter how the adjustment plate is rotated, synchronization is ensured in the idle phase of both levers.

Therefore, after setting both the pedal lever and the sensor lever to the full phase, the adjusting plate is rotated to move the rotation fulcrum of the reversing lever, and if the synchronization of both levers at the full phase is taken, once. It is possible to synchronize the idle and full phase of both levers by adjusting the.

Incidentally, of course, conversely, it is also possible to first secure the synchronization at the full phase of both levers and then to synchronize the idle phase.

[0022]

An embodiment of the present invention will be described with reference to the accompanying drawings.

[Embodiment 1] As shown in FIG. 1, an accelerator pedal 1 is rotatably provided on the floor of a driver's cab of a vehicle. On the back surface of the accelerator pedal 1, a pedal lever 2 that is rotated according to the depression amount of the pedal 1 is arranged.
The pedal lever 2 is made of a substantially L-shaped material, and its bent portion is rotatably supported by the vehicle body by a pin 3. A roller 4 that is in contact with the back surface of the accelerator pedal 1 is provided at the end of the pedal lever 2 on the accelerator pedal 1 side so that the lever 2 and the pedal 1 do not rub directly.
A pin 5 is provided at the opposite end of the pedal lever 2.

Above the accelerator pedal 1, a stroke sensor 6 for detecting the depression amount of the accelerator pedal 1 is provided.
Is fixed to the vehicle body. The stroke sensor 6 is provided with a sensor lever 7. When the sensor lever 7 rotates, a signal according to the amount of rotation is generated from the stroke sensor 6. A pin 8 is provided at the tip of the sensor lever 7.

Between the sensor lever 7 and the pedal lever 2, one end is engaged with the pin 8 of the sensor lever 7,
A reversing lever 10 is provided, the other end of which engages with the pin 5 of the pedal lever 2 and which has a rotation fulcrum 9 at approximately the center. An elongated hole 11 is formed at an end of the reversing lever 10 on the sensor lever 7 side, and a pin 8 of the sensor lever 7 is engaged in the elongated hole 11. On the other hand, a smooth linear slider portion 12 is formed at the end portion of the reversing lever 10 on the pedal lever 2 side, and the pin 5 of the pedal lever 2 slides on the slider portion 12.

The reversing lever 10 is biased by a spring (not shown) so as to rotate clockwise in the drawing.
According to this configuration, for example, when the pedal lever 2 rotates clockwise, the pin 5 of the pedal lever 2 slides on the slider portion 12, the reversing lever 10 rotates counterclockwise, and the pin 8 of the sensor lever 7 extends. The sensor lever 7 moves in the hole 11 and rotates clockwise.

The pin provided on the rotation fulcrum 9 of the reversing lever 10 is supported by the adjusting plate 13. The adjustment plate 13 is rotatably supported with respect to the vehicle body by a pin provided on its own rotation fulcrum 14. Therefore, when the adjusting plate 13 is rotated around its rotation fulcrum 14 with respect to the vehicle body, the rotation fulcrum 9 of the reversing lever 10 moves accordingly.

A guide groove 15 is formed in the adjusting plate 13 along the direction of rotation of the adjusting plate 13 so as to be located on the driver side in the vehicle compartment. The guide groove 15 is provided on the adjustment plate 13
Is formed in an arc shape centering on the rotation fulcrum 14 of
A bolt 16 fixed to the vehicle body side is inserted into the groove 15. According to this configuration, the adjustment plate 13 is
Within the range where the bolt 16 hits both ends of the guide groove 15,
It will rotate.

A nut 17 for fixing the mounting angle of the adjusting plate 13 to the vehicle body is screwed onto the bolt 16. That is, when the nut 17 is tightened,
The adjusting plate 13 is fixed to the vehicle body at an arbitrary angle. In this embodiment, the guide groove 15, the bolt 16 and the nut 17 correspond to the fixing means in the claims.

The operation of this embodiment having the above configuration will be described.

When the accelerator pedal 1 is depressed, the pedal lever 2 rotates in accordance with the amount of depression, and the sensor lever 7 rotates via the reversing lever 10. As a result, the stroke amount of the accelerator pedal 1 is transmitted to the stroke sensor 6.

In order to align (tune) the origin of the pedal lever 2 and the sensor lever 7, the adjusting plate 13 is appropriately rotated about its rotation fulcrum 14 with respect to the vehicle body, and the reversing lever 1 is rotated.
This is performed by moving the rotation fulcrum 9 of 0. At this time, the adjustment plate 13 includes the bolt 16 fixed to the vehicle body.
Rotates within a range where it hits both ends of the guide groove 15 formed in the adjusting plate 13. Then, after the origin alignment is completed, the bolt 16 in the guide groove 15 is attached to the nut 1.
Tighten by 7 and fix the adjustment plate 13 to the vehicle body at that angle.

Here, since the guide groove 15, the bolt 16 and the nut 17 are provided on the driver side (front side) of the adjusting plate 13, the origin alignment work is performed on the front side of the driver's cab in the factory production line. Easy to do from the side. Further, at the time of the home position alignment work, the adjustment plate 13 may be rotated around the rotation fulcrum 14, but since the adjustment plate 13 is made of a relatively small plate material and is lightweight, the adjustment work can be easily performed. Can be done.

[Embodiment 2] By the way, the stroke amount between the idle phase and the full phase of the accelerator pedal system may vary from individual to individual. That is, the idle phase angle of the accelerator pedal 1 remains unchanged for all individuals, but the full phase angle may differ depending on the stroke of each individual. In this case, even if the idle phase of the accelerator pedal 1 is set as the origin phase and the idle phase of the stroke sensor is adjusted to match, the accelerator pedal 1 is set to the full phase due to the variation in the pedal stroke amount of each individual. At this time, the stroke sensor 6 may not reach the full phase.

Another embodiment in which this point is solved will be described with reference to FIGS. 3 and 4.

As shown in the figure, this embodiment shares the basic structure with the previous embodiment, and when both the sensor lever 7 and the pedal lever 2 are in the idle phase, the adjusting plate 1
A line 18 connecting the rotation fulcrum 14 of 3 and the rotation fulcrum 9 of the reversing lever 10 and a line connecting the action points at both ends of the reversing lever 10 (a line 19 connecting the pin 8 of the sensor lever 7 and the pin 5 of the pedal lever 2). , The only difference is the vertical. That is, the rotation fulcrum 14 of the adjusting plate 13 is set on the normal line (on the line 18) to the reversing lever 10 when the sensor lever 7 and the pedal lever 2 are both in the idle phase. The rotation fulcrum 14 of the adjustment plate 13
3 may be located on the opposite side of the rotation fulcrum 9 of the reversing lever 10 on the normal line 18 as shown by the broken line in FIG.

According to this structure, when both the sensor lever 7 and the pedal lever 2 are in the idle phase, the moving direction of the rotation fulcrum 9 of the reversing lever 10 by the rotation of the adjusting plate 13 is such that the action points at both ends of the reversing lever 10 are moved. Line 19 connecting 5 and 8
Move along an arc whose tangent is. At this time, the pin 8 of the sensor lever 7 moves in the elongated hole 11 and the pin 5 of the pedal lever 2 slides on the slide portion 12. Therefore, even if the adjustment plate 13 is rotated to align the origins of the levers 2 and 7, the link relationship before and after the movement is almost unchanged. That is, according to this configuration, no matter how the adjustment plate 13 is rotated, the synchronization of both levers 2 and 7 in the idle phase is ensured.

After that, as shown in FIG. 4, both the pedal lever 2 and the sensor lever 7 are temporarily fixed in the full phase state, and then the adjusting plate 13 is rotated to move the rotation fulcrum 9 of the reversing lever 10. , Both levers 2 and 7 are synchronized in full phase. Specifically, the adjusting plate 13 is first rotated upward (the stroke side of the accelerator pedal 1 is large) to be lifted, and then gradually lowered (the stroke side of the accelerator pedal 1 is small) to lower the reversing lever. 10
The adjustment plate 13 is fixed to the vehicle body when the slide portion 12 of the above-mentioned contacts the pin 5 of the pedal lever 2. By doing so, even if the angle of the full phase of the pedal lever 2 is different for each individual, the full phase of the pedal lever 2 and the full phase of the sensor lever 7 can be synchronized.

Even if such adjustment is performed, that is, the adjustment plate 13 is rotated to make the full phases of both levers 2 and 7 coincide with each other, as described above, both levers 2 and 7 in the idle phase are adjusted. Synchronization is secured. Therefore, idle / full phase synchronization can be achieved by this one-time adjustment work.

[Third Embodiment] In the case where the stroke amount between the idle phase and the full phase of the accelerator pedal system varies from individual to individual, the full phase angle of the accelerator pedal 1 is reversed, contrary to the previous embodiment. Is constant for all individuals, but the idle phase angle may differ depending on the deviation of the return stroke for each individual. In this case, even if the full phase of the accelerator pedal 1 is used as the origin phase and the adjustment is made so that this matches the full phase of the stroke sensor 6, the accelerator pedal 1 will be in the idle phase due to variations in the pedal return stroke amount of each individual. Stroke sensor 6
May not be in the idle phase.

Another embodiment which solves this point will be described with reference to FIG.

As shown in the figure, this embodiment shares the basic structure with the previous embodiment, and when both the sensor lever 7 and the pedal lever 2 are in the full phase, the rotation fulcrum 14 and the reversal of the adjusting plate 13 are reversed. A line 18 connecting the rotation fulcrum 9 of the lever 10 and a line 1 connecting the action points 5 and 8 at both ends of the reversing lever 10.
9 (a line 19 connecting the pin 5 of the sensor lever 7 and the pin 5 of the accelerator lever 2) is different from each other only in a vertical direction. That is, the sensor lever 7 and the pedal lever 2
Is a normal 18 to the reversing lever 10 in a full phase state.
The rotation fulcrum 14 of the adjusting plate 13 is set above. The rotation fulcrum 14 may be positioned on the opposite side of the rotation fulcrum 9 of the reversing lever 10 as long as it is on the normal line 18.

According to this structure, no matter how the adjusting plate 13 is rotated, for the same reason as in the previous embodiment,
The contact relationship between the sensor lever 7 to the reversing lever 10 to the pedal lever 2 is almost unchanged when both levers 2 and 7 are in the full phase state, and synchronization is ensured when both levers 2 and 7 are in the full phase state. . Therefore, after that, if the adjustment work for synchronizing the idle phase with variations for each individual is performed, both levers 2, 7 can be adjusted by one adjustment work as in the previous embodiment.
The idle full phase synchronization of can be taken.

[Embodiment 4] Another embodiment will be described with reference to FIGS.

In the figure, 1 is an accelerator pedal, 2 is a pedal lever, 10 is a reversing lever, 7 is a sensor lever, 6 is a stroke sensor, 13 is an adjusting plate, and 20 is a bracket attached to the vehicle body.

As shown in FIG. 9, the pin 3, which is the rotation fulcrum 9 of the pedal lever 2, is supported by the bracket 20. The pin 9a, which is the rotation fulcrum 9 of the reversing lever 10, passes through the elongated hole 21 formed in the bracket 20 and is arranged on the opposite side of the bracket 20 (on the back side of the drawing).
It is supported by 3. Rotation fulcrum 14 of adjustment plate 13
The pin 14a is rotatably supported by the bracket 20. According to this configuration, the adjustment plate 13 is
Within the range in which both ends of the elongated hole 21 come into contact with the pins 9a, the elongated hole 21 is rotated about its rotation fulcrum 14. A slide portion 12 with which the pin 5 of the pedal lever 2 abuts is formed at the end portion of the reversing lever 10 on the pedal lever 2 side.

At the end of the reversing lever 10 on the sensor lever 7 side, a pin 23 that is inserted into an elongated hole 22 formed in the sensor lever 7 is provided. The stroke sensor 6 is
It is attached to the bracket 20 by bolts 24. The bolt 24 is tightly tightened in advance.
The reversing lever 10 is, as shown in FIG.
Return spring 25 inserted through the pin 9a which is the rotation fulcrum 9 of
Thus, the slide portion 11 of the reversing lever 10 is urged in the direction of coming into contact with the pin 5 of the pedal lever 2.

In FIG. 9, 26 is a bolt for fixing the adjusting plate 13 to the bracket 20, and 27 is a bolt for fixing the adjusting plate 13 to the bracket 20 and the stroke sensor 6 to the bracket 20. These bolts 26, 27 are provided with elongated holes 28,
29 through the adjustment plate 1 on the back side of the bracket 20
Screwed into 3. These bolts 26 and 27 are loosely temporarily fixed in advance. The elongated holes 28 and 29 are formed in an arc shape centered on the rotation fulcrum 14 of the adjusting plate 13. The sensor lever 7 is held in full phase by the lever fixing resin pin 30 (see FIG. 8).

The mounting of the pedal lever 2 to stroke sensor 6 assembly having the above-described configuration on a vehicle will be described below.

First, as shown in FIG. 10, the accelerator pedal 1 is depressed until it serves as a stopper on the engine side. Next, adjust the adjusting plate 13 and the bolt 26 in the direction of arrow
When the slide portion 12 of the reversing lever 10 hits the pin 5 of the pedal lever 2, the bolts 26 and 27 are tightened. As a result, the position of the reversing lever 10 is fixed, and the pedal lever 2 and the sensor lever 7 are synchronized in full phase. After the above adjustment, the accelerator pedal 1 is returned to the idle position, and the resin pin 30 fixing the sensor lever 7 in the full phase is turned by turning the sensor lever 7. As a result, the synchronization from the idle phase to the full phase is taken.

This embodiment is applied when the position of the idle phase of the accelerator pedal 1 is substantially the same as that of each individual, but the position of the full phase of the accelerator pedal 1 is different for each individual.

[0052]

As described above, according to the present invention, the following excellent effects can be exhibited.

(1) Since the rotation fulcrum of the reversing lever is moved by rotating the adjustment plate,
The origin position of the pedal lever and the sensor lever can be easily adjusted.

(2) If the line connecting the rotation fulcrum of the adjustment plate and the rotation fulcrum of the reversing lever and the line connecting the action points at both ends of the reversing lever are made perpendicular, the idle phase and full phase of both levers can be adjusted by one adjustment work. The phase can be synchronized.

[Brief description of drawings]

FIG. 1 is an explanatory view of an interlocking device between an accelerator pedal and a stroke sensor showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a conventional interlocking device.

FIG. 3 is an explanatory diagram of an interlocking device showing a second embodiment of the present invention.

FIG. 4 is a diagram showing the operation of the second embodiment.

FIG. 5 is an explanatory diagram of an interlocking device showing a third embodiment of the present invention.

FIG. 6 is a perspective view of an interlocking device showing a fourth embodiment of the present invention.

FIG. 7 is a front view of the interlocking device.

FIG. 8 is a partially enlarged view of the interlocking device.

FIG. 9 is a side view of the interlocking device.

FIG. 10 is a diagram showing an operation of the interlocking device.

[Explanation of symbols]

1 accelerator pedal 2 pedal lever 6 Stroke sensor 7 sensor lever 9 rotation fulcrum 10 Reversing lever 13 Adjustment plate 15, 16, 17 Fixing means

Claims (2)

(57) [Claims] 1. An interlocking device for transmitting a depression amount of an accelerator pedal to a stroke sensor, and a pedal lever which is rotated according to a depression amount of an accelerator pedal, and a signal which is rotatably provided on a stroke sensor and corresponds to the rotation amount. And a reversing lever having a rotation fulcrum between both levers, one end of which engages with the pedal lever and the other end of which engages with the sensor lever, and a rotation fulcrum of the reversing lever. An accelerator pedal, comprising: an adjusting plate rotatably supported by the vehicle body itself; and a fixing means provided on the driver side of the adjusting plate for adjusting and holding an attachment angle of the adjusting plate with respect to the vehicle body. And a stroke sensor interlocking device. 2. A line connecting the rotation fulcrum of the adjusting plate and the rotation fulcrum of the reversing lever and a line connecting the action points at both ends of the reversing lever are set when the sensor lever and the pedal lever are both in full phase or idle phase. The interlocking device for an accelerator pedal and a stroke sensor according to claim 1, wherein the interlocking device is vertical.